57664623 has 8 divisors (see below), whose sum is σ = 76942000. Its totient is φ = 38415168.

The previous prime is 57664603. The next prime is 57664643. The reversal of 57664623 is 32646675.

It is an interprime number because it is at equal distance from previous prime (57664603) and next prime (57664643).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57664623 - 2⁶ = 57664559 is a prime.

It is a super-3 number, since 3×57664623³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57664603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558 + ... + 10851.

It is an arithmetic number, because the mean of its divisors is an integer number (9617750).

Almost surely, 2^57664623 is an apocalyptic number.

57664623 is a deficient number, since it is larger than the sum of its proper divisors (19277377).

57664623 is a wasteful number, since it uses less digits than its factorization.

57664623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13961.

The product of its digits is 181440, while the sum is 39.

The square root of 57664623 is about 7593.7226048889. The cubic root of 57664623 is about 386.3401276886.

The spelling of 57664623 in words is "fifty-seven million, six hundred sixty-four thousand, six hundred twenty-three".